Re: Embedded fonts + generic font families

Hi all,

Unless someone can identify, by the end of the week, a use case not covered
by (a) and requiring (b), I suggest clarifying that (b) is not supported.

Best,

-- Pierre

On Fri, Jan 25, 2019 at 10:37 AM Glenn Adams <glenn@skynav.com> wrote:

> Correct.
>
> On Fri, Jan 25, 2019 at 3:23 AM Pierre-Anthony Lemieux <pal@sandflow.com>
> wrote:
>
>> > But I'm willing to consider use cases for allowing it. I just can think
>> of a good one. If you are going to provide a font resource you can give
>> > it any family name, so what is the need to override a generic family
>> name?
>>
>> Say the author wishes to both specify a generic font family
>> (proportionalSansSerif) and include the actual font file used at authoring
>> (Arial).
>>
>> (a) the author can specify tts:fontFamily="Arial,default" and embed Arial
>> (b) the author can specify tts:fontFamily="default" and embed Arial such
>> that it aliases to 'default'
>>
>> (a) is supported today, and (b) is ambiguous today and the the proposal
>> is to forbid it. Did I get this right?
>>
>> Best,
>>
>> -- Pierre
>>
>> On Thu, Jan 24, 2019 at 6:51 AM Glenn Adams <glenn@skynav.com> wrote:
>>
>>> Correct. That is my assumption. But I'm willing to consider use cases
>>> for allowing it. I just can think of a good one. If you are going to
>>> provide a font resource you can give it any family name, so what is the
>>> need to override a generic family name?
>>>
>>> On Thu, Jan 24, 2019 at 7:31 AM Pierre-Anthony Lemieux <pal@sandflow.com>
>>> wrote:
>>>
>>>> Hi Glenn,
>>>>
>>>> Your conclusion is that tts:fontFamily="proportionalSerif" is always
>>>> implementation-dependent and cannot be overridden by the author?
>>>>
>>>> Best,
>>>>
>>>> -- Pierre
>>>>
>>>> On Thu, Jan 24, 2019 at 2:27 PM Glenn Adams <glenn@skynav.com> wrote:
>>>>
>>>>> I have (since around October) had the following note on my TODO list
>>>>> for filing issues against TTML2:
>>>>>
>>>>> + [SUBSTANTIVE] do not allow @family on font element to be
>>>>>
>>>>>  a <generic-family-name> (either unquoted or quoted);
>>>>>
>>>>> On Thu, Jan 24, 2019 at 2:08 AM Pierre-Anthony Lemieux <
>>>>> pal@sandflow.com> wrote:
>>>>>
>>>>>> Good morning/evening,
>>>>>>
>>>>>> Say the following is present in a TTML2 document:
>>>>>>
>>>>>>   <resources>
>>>>>>     <font family="default" range="u+20-7f,u+90-9f">
>>>>>>       <source src="http://example.com/fonts/default.otf"
>>>>>> type="font/otf"/>
>>>>>>     </font>
>>>>>>   </resources>
>>>>>>
>>>>>> In the following snippet, is a presentation processor expected to use
>>>>>> the embedded font, or is the font selection sill left to the implementation?
>>>>>>
>>>>>> <p tts:fontFamily="default">font above or application-selected?</p>
>>>>>>
>>>>>> Best,
>>>>>>
>>>>>> -- Pierre
>>>>>>
>>>>>